<em>remember that
<u>loudness is directly proportional to the square of amplitude...
</u>so when amplitude is doubled ,,loudness increases four times..
when it is halved ,,,loudness is halved,,,</em>
Answer:
it can contaminate the water
Explanation:
I hope this helps ;)
<h2>Greetings!</h2>
To find speed with distance and time, you need to remember the speed formula:
Speed = distance ÷ time
So we need speed and we have the other two values, we can plug the values in:
Speed = 20 ÷ 2 = 10
The measurement for speed in this case is m/s (metres per second)
<h3>So the answer is 10m/s</h3>
<h2>Hope this helps!</h2>
